Railway wheel-flat detection and measurement by ultrasound

被引：60

作者：

Brizuela, J. ^{[1
]}

Fritsch, C. ^{[1
]}

Ibanez, A. ^{[1
]}

机构：

[1] CSIC, Madrid 28500, Spain

来源：

TRANSPORTATION RESEARCH PART C-EMERGING TECHNOLOGIES | 2011年 / 19卷 / 06期

关键词：

Wheel-flat detection; Rolling surface; Rayleigh waves; Railway NDE; INSPECTION;

D O I：

10.1016/j.trc.2011.04.004

中图分类号：

U [交通运输];

学科分类号：

08 ; 0823 ;

摘要：

This work presents an innovative ultrasound technique designed to detect and quantify flats formed in the rolling surface of railway wheels. Differently from other approaches, ultrasonic pulses (Rayleigh waves) are sent over a measuring rail. The variations in the round-trip time of flight (RTOF) of the ultrasound pulse to the rail-wheel contact point allow detecting and quantifying the wheel-flats. In spite of the wear state of the irregularity, the method provides the loss of material and the length of the flat originally formed by abrasion. A theoretical background supports the technique which offers many advantages for railway maintenance. Simulations and experimental results match the expected ones. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：975 / 984

页数：10

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